cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
432
Views
0
Helpful
1
Replies

Nexus 5548UP Real Bandwidth

Terry MacDougal
Level 1
Level 1

I was wondering if someone can explain to me the real bandwidth on a 5548UP? We always hear the 10G number, but doesn't this really mean the ASIC has 10G spread across the front-end ports it's attached to? So you really are not getting 10G on each port.

 

Thanks

1 Reply 1

Marvin Rhoads
Hall of Fame
Hall of Fame

The 5548UP is non-blocking. All 10 Gbps ports can run at wire speed simultaneously. Reference.

There is an internal Unified Port Controller (UPC) ASIC per each group of 8 ports but it does not introduce blocking. Later in the linked document it states:

"The UPC manages eight ports of 1 and 10 Gigabit Ethernet or eight ports of 1/2/4/8-Gbps Fibre Channel. It is responsible for all packet processing and forwarding on ingress and egress ports. Each port in the UPC has a dedicated data path. Each data path connects to UCF through a dedicated fabric interface at 12 Gbps. This 20 percent over-speed rate helps ensure line-rate throughput regardless of the internal packet headers imposed by the ASICs"

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: